This is an optional file for the "Overthinked DooM^3" that contains two Doom configuration files. One turns the graphics settings up a notch as the default files supplied with Overthinked use very low graphics settings. The other config file turns the graphics settings up as far as the can go--ultra high graphics--for those who have rigs that can handle it (and most do by now; Doom was released over 10 years ago).
Credits: punk0x29a